Read moreI'll give my 2 cents on this as well! Before I start I just wanna say as someone who's played LOL for 6 years, I super respect Riot teams/employees especially for all the communication directly with the player base on forums just like this, so special thanks to you /u/aeneia !
Now in regards to the mics subject. I am just a lowly silver player but even for me it can oftentimes feel like being teamed up with people that just dont use their mic at all and don't even attempt to communicate via pings/text chat can be SUPER frustrating.
As someone who is super active on comms (and not toxic haha), I feel that a cohesive team voice chat actually increases your chances of winning by a great margin. I would be curious to see if Riot had any sort of stats regarding teams who had 3-5 players that even activated their mic once in chat vs teams that didnt (If those stats even exist)
TL;DR
Having a team that refuses to commun...
Hey fam! I don't know of any research that's been done on the team to identify if having mics is predictive of higher win rates (and I've been on the team since before launch, so chances are we haven't done it!) As someone who plays the game a lot, I can tell you anecdotally that I much prefer having other teammates who use mics, so long as those other teammates aren't abusive. (Even if it's not for the sake of winning, the cooperative strategy and communication is one of my favorite parts of the game. It's a real bummer when other players refuse to talk.) So I don't have an answer for you, but I can tell you -- I feel you.